Film handling apparatus



Aug, 18, 1936 w. D. FOSTER FILM HANDLING APPARATUS Filed March 18, 1929Sheets-sheaf l W.D. FOSTER INVENTORI. Malmji ATTORNEY Aug. '18, 1936. w.D. FOSTER FILM HANDLING APPARATUS Filed. March 18, 1929 9 Sheets-Sheet 2w. 0. FOSTER- IN V EN TOR- BY Mh m A TTORNEY Aug. 18, 1936.

w. 0. FOSTER FILM HANDLING APPARATUS Filed March 18, 1929 9 Sheets-Sheet3 R w w r a W.

INVENTOR.

BY MMw VZv L ATTORNEY Aug." 18, 1936. w. D. FOSTER FILM HANDLINGAPPARATUS Filed March 18, 1929 9Sheets-Sheet 4 MD. FOSTER INVENTOR-ATTORNEY Aug. 18, 1936. w. D. FOSTER FILM HANDLING APPARATUS 9Sheets-Shee t 5 Filed March 18, 1929 W-D. FOSTER INVENTOR. phwzm ATTORNEY Aug. 18, 1936. w. D. FOSTER 2,051,785

FILM HANDLING APPARATUS Filed March 18, 1929 9 Sheets-Sheet 6 3 oINVENTOR. 24! 22,70

16 ATTORNEY IZ 3 4 V Aug. 18, 1936.

I W. D. FOSTER F ILM HANDLING APPARATUS Filed March 18, 1929 9Sheets-Sheet 7 R .m m v 5 T .E o m N F V m D. m T A w M Y B a 7 O 4 5 0.ww 3 7,9 2 ZN MN Aug: 18, 1936. w. D. FOSTER FILM HANDLING APPARATUSFiled March 18, 1929 9 Sh eets-Sheet a 3| 2 U U m F? 7 .M m 6/ M 1 J 7/M8 mm a w 5 1 y A TTORNEY Aug. 18, 1936. w. DfFOSTER 2,051,785

FILM HANDLING AfPARATUS I Fi led March 18, 1929 9 Sheets-Sheet 9 W. D.FOSTER /40 /4 7 INVENTOR #6 55' I BYWdrgM 1 ATTORNEY PatentedAug. 18,1936 PTENT FEM LING APPARATU$ Warren Dunlram Foster, waghingtgn BergenCounty, N. 3,, assigns Township, to Kinntome Patents Corporation, NewYork, N. 1., a corporation of New Yorh Application March 18, N29, SerialNo. 34?,953

closed and claimed separate motive means for 15 the actuation of thecontrol mechanism of the film handling apparatus and for the normaloperation of such apparatus, together with means for the definite timingor such actuation and the interposition of suitable periods of rest ordwell whereby certain desired operating conditions could beautomatically obtained, as desired in timed or sequential relation. Insuch parent application, I also disclosed method and means for initiallypositioning a film in operative relation with the film feeding mechanismof the apparatus, and improved method and means for the actuation andcontrol of the various operations of such apparatus, including, interalia, the provision of combined manual and automatic control means.

In such parent application, I illustrated my invention as applied to theapparatus described in the copendlng application of Barton AllenProctor, Serial Number 54,910, filed September 35 8, 1925, now PatentNumber 1,894,963, in which the compensation for difierences in characterof movement between the intermittently operating feeding mechanism andthe continuously operating supply and take-up members is obtained 40 bymeans of the tension control system of feeding, as more particularlydescribed-in the copending application of Clarkson Ulysses Bundicl: andsaid Proctor, serial Number 44,482, filed July 18, 1925, now PatentNumber 1,815,109. An object of the present invention is to apply myinvention to the production of loops of slack film whereby compensationis so secured for such diflerences in character of movement of theintermittently and continuously operated feeding members, such loopsbeing the complete equivalent of and substitute for such tension controlsystem of feeding. An object of my invention is the provision of meansfor the automatic actuation of the mechanism whereby such conventionalloops of slack film are automatically created, in

is not limited to use with any particular form timed or: sequentialrelation to the actuatioirozf the other operative elements or the filmhandling apparatus.

An object of the present invention is to provide means whereby loops ofunsuppor ed slack film may be automatically and accurately providedwithout attention upon the part of the user, and without subjecting thefilm to strain.

Another object of the invention is to provide for the sequential ortimed operation of various elements in the film handling apparatus insuch a manner that such loops will be automatically and accuratelyproduced. A further object is the provision of means whereby theinitiation of the actuation of the various film handling operations maybe under the complete control ofthe operator but performed by a specialentirely automatic mechanism beyond his control so that he is unable tointerfere with the correct operation of the apparatus.

An object of a preferred modification of my invention is thesubstitution of spring power for electrical power for the initiation ofthe operation of the apparatus.

The invention is herein illustrated as applied to an apparatus of thegeneral character shown and claimed in such previously mentionedcopending application of Barton Allen Proctor, although it will beunderstood that the invention of film handling apparatus.

Other advantages and characteristics of the present invention areapparent in the following description, the attached drawings, and thesubjoined claims. Although I am showing one preferred embodiment of myinvention, it will be readily understood that I am not limited to anyparticular construction as changes can readily be made without departingfrom the spirit of my invention or the scope of my broader claims.

In the drawings:

Figure 1 is a right side elevation of the machine, certain parts of thelamp housing being broken away, and certain parts being omitted forclarity.

Figure 2 is a left side elevation of the machine, certain parts beingomitted for clarity.

Figure 2a is a detail view of the control link for the film guides andtheir associated parts.

Figure 3 is a partial right side elevation, broken away to showactuating parts in film threading position, certain parts being omittedfor clarity.

Figure 3a. is a view of a portion of the mechanism for actuating thefilm positioning and locking fingers, such fingers being in the inopera-ZIY? P 532102 Figure 3b is a top view of the same.

Figure 4 is an enlarged skeleton view, taken on the line 4-4 of Figure1, looking in the direction of the arrows, showing the clutches forthefeeding sprockets, and the stripping and protecting shields for the filmmoving member and the means for operating the same. Figure 4a is anenlarged skeleton elevational view of such shields and the means foroperating thesame. Figure 4b is a fragmentary side view of the lowerpart of the structure of Figure 4, looking toward the take-up sprocketshaft.

Figure 5 is a cross section on a line 5-5 of Figure 2 looking in thedirection of the arrows, certain parts being omitted for clarity;

Figure 6 is a partial view, taken on 'the line 66 of Figure 1, showingthe right side only to illustrate the gate. Figure 6a is a detail viewof the gate rod crank lever and associated parts.

Figure 7 is a partial bottom plan view showing actuating levers in"projection-in-motion position, with the control mechanism at station SIand with the manual control button at station S0, out of operativecontact with the mechanism and about to be moved downwardly into suchoperative contact.

Figure 8 is a partial bottom plan view showing actuating levers in theintermediate position S0, with the control button held locked while theelectrical actuating mechanism is about to operate. s

Figure 9 is a partial bottom plan view showing actuating levers in filmthreading or changing position, with the control button at station S3.

Figure 10 is a partial bottom plan view showing actuating levers inrewind position,' with the control button at station S4.

Figure 11 is an enlarged view, taken upon the line I l-li of Figure 7,-looking in the direction of the arrows, certain parts being omitted forclarity.

Figure 12 is an enlarged view, taken upon the line l2--|2 of Figure 8,looking in the direction of the arrows, certain parts being omitted forclarity.

Figure 13 is an enlarged'detail view of a portion of the take-up clutchcontrol mechanism.

Figure 14 is an enlarged detail view of a portion of the supply sprocketcontrol mechanism. Figure 15 is an enlarged detail view of a portion ofthe intermittent or feeding sprocket control mechanism.

Figure 16 is an enlarged detail view of'a portion of the take-upsprocket control mechanism. Figure 17 (sheet 5) is a wiring diagram ofthe appartus.

Figure 18 is a partial bottom plan view of a preferred modification, inwhich simplified motive means is employed for theactuating mechanism,the parts being in the position which they assume immediately prior tothe substitution of mechanical control for manual. Figure 19 is asimilar view, after the control mechanism has been placed in the"projectionin-motion position at station SI, with the manual controlbutton at station SD, out of operative contact with the mechanism andabout to be moved into such contact.

Figure 20 is a detail view of a portion of such station S2.

Figure 21 is a; view, taken on the line -2|2i 'of Figure 19, looking inthe direction of the arrows.

Figure 22 is a detail view of the switch for the solenoid.

In carrying may be provided an appara us comprising a sup- ,out thepresent invention, there porting base B having mounted thereon a lamphousing H and a supporting frame F upon which are mounted the operatingparts of the film feed ing and controlling mechanism per se. Preferablycarried by the frame F and p ojecting from one side thereof inpredetermined spaced relationship is a pair of reel receiving spindles 2and 3, the spindle 2 being adapted for the holding of a reel of filmduring the feeding movement thereof and adapted to effect rewinding ofthe film at the conclusion of the feeding movement, while the spindle 3is adapted to be positively driven during the feeding movement forcoiling the film as required. The film itself may be. carried in a'combined storage and exhibiting container comprising a pair ofcontainers 5 and 5 having a pivotal connection 6 whereby the containersmay be relatively separated to a predetermined extent to expose thedesired length of film therebetween, or it may be 20 supported in anyappropriate manner.

The spindle 3, which will hereafter be referred to as the driving ortake-up spindlefis 'journaled for rotation in a suitable bearing .l inan enlarged boss 8 in the frame F. A'friction driving 25 member 9 issecured to the left hand end of the spindle, as viewed in Figure 5. Thedriving mem-' her 9 has a friction surface II! with which is adapted tocooperate a second friction member I I in the form of a disk. The disk Il and the driving member 9 are preferably held in-frictional engagementby means of springs i2 carried by the member 9 and bearingagainst thedisk i I through the medium of an annulus i3, the'springs being heldunder the desired tension and the annulus being maintained in positionby adjusting screws It. Projecting rearwardly from the disk I I is acircularseries of closely spaced teeth I5 adapted to be engaged by aclutch hereinafter described in detail by means of which the drivingspindle 3 maybe rotated through the friction surfaces just described.-Projecting from the base B in spaced relation. to the frame F is abearing bracket l8 carrying a bearing II for a shaft l8 extending inalignment with the driving spindle 3. Secured in any desired manner tothe shaft l8 for rotation therewith is a worm wheel l9 adapted to bedriven by a worm 20 secured to a horizontally positioned driving shaft2| located on one. side of the frameF. This shaft at its forward end ismounted in spaced bearings 22 carried by the bracket l8 and is connectedto a driving motor M preferably through a flexible coupling 23 of anydesired or usual construction. By reason of this mechanism, it will beapparent that when the motor M is operated, the shaft l8 will bepositively driven through the worm and wheel before referred to. Fortransmitting this rotational movement from the shaft l8 to the spindle 3at .will there is provided a collar 24 mounted upon the inner end of theshaft l9 for rotational movement therewith and longitudinal movementrelatively thereto and including an extension, having therein a groove25, and terminating inclosely spaced .teeth 25. By moving such collar 24to the right,

as .viewed in Figure 5, the teeth are projected to bring them intoengagement with the corre sponding teeth l5 whereby a positive drive isimmediately established for the driving spindle.

This clutch will hereinafter be referred to as the driving spindle ortake-up spindle clutch.

The spindle 2, which will hereinafter be designated the rewindingspindle, or, when the context makes such phrasing desirable, as the.delivery 76 or supply spindle, is mounted similarly to the drivingspindle 3 in a bearing 28 carried by the frame F, an enlarged boss 28being provided coaxial with such bearing and spindle, and has secured toone end a collar 29 from which project closely spaced teeth 30.Extending in alignment with the rewinding spindle 2 is a shaft 3|suitably journaled in a bearing 32 carried by a bracket 33 illustratedas secured to the frame F. Mounted on the inner end of the shaft 3| forrotation therewith and longitudinal movement relatively thereto is asleeve 34 having an enlarged end from which project teeth 35 which areadapted to engage with the teeth 30 and constitutes a rewinding orsupply spindle clutch which may be generally similar in construction andoperation to the construction of the driving spindle clutch. Uponmovement of the collar 34 to the right as viewed in Figure 5, the teeth35 will be brought into contact with the teeth 30 whereby the rewindingspindle 2 may be operated for effecting a rewinding of a previouslydisplayed length of film.

For driving the shaft 3| there may be provided a collar 3| pinned to theshaft 3| and bearing against a flat spring 36 which forces a fibre disk31 against a face of a pulley 31. The pulley 31 is mounted in line witha similar pulley 38 mounted on the outer end of a spur shaft 39 securedin the bracket "5. Also mounted on the shaft 39 is a spur gear 40adapted to be driven by a similar, but preferably larger, gear 4| on theouter end of the shaft l8. By passing a suitable belt around the pulleys31 and 38 it will be apparent that the shafts l8 and 3| may besimultaneously rotated by the motor M, the shaft 3| preferably rotatingat a higher speed than the shaft I8, and that rotative movement in turnmay be imparted by either of these shafts to the respective spindleswith which they are in alignment by suitable operation of thecontrolling clutches.

It will readily be understood by those skilled in the art that thisprovision of a yielding drive for the shaft 3| especially in combinationwith the belt and pulley drive, prevents the forward or leader end ofthe film, which is attached to the take-up'spindle 3, being torn loosetherefrom at the conclusion of the re-winding cycle.

Mounted on the frame F adjacent the motor M is a gate section 42preferably secured in any desired manner as by screws 43 againstmovement relatively to the frame. This section is preferably formed withan aperture 44 through which light may be projected as well understoodin the art, and with a film guiding depression extending lengthwise ofthe section and intersecting the aperture 44 for the travel of the film,such depression preferably being of great depth relatively to'thethickness of the film. Cooperating with the section 42' is a relativelymovable section 46 preferably guided by a pin 41 projecting outwardlyfrom the section 42, and secured to one end of the gate opening rod 48slidable through a suitable opening in the gate section 42 and asuitable bearing 49 on the frame F. By reason of this construction, itwill be apparent that when the rod 48 is moved to the left as viewed inFigure 1 it will be effective for moving the section 46 away from thesection 42 to permit the removal of the film and the insertion of a newfilm, while movement in the opposite direction will bring the sectionsinto cooperative relation. An idler 49 (Figure 3) may be mounted at theupper end or the section 42 for cooperation with the film below thesupply sprocket loop, later described.

For effectiing the desired intermittent feeding motion of a film inposition in the gate, there may be provided a feeding sprocket 50 havingfilm engaging teeth 5| adapted to engage usual perforationssubstantially peripherally positioned in the film f. This sprocket ismounted on a shaft 53 extending transversely through the frame F andcarrying at its opposite end a star wheel 54. This star wheel, which maybe of any well known construction, is adapted to be intermittentlydriven by means of a sectional cam 55 secured adjacent one end of ashutter shaft 56 journalled at one end of a grease casing C within whichare mounted the sectional cam 55 and star wheel 54, and at its oppositeend journaled in a suitable bearing 51 carried by a bracket 58projecting from the frame F.

Mounted loosely upon the shaft 56 adjacent the opposite end thereof,(Figure 2) is a gear 59 upon the inner surface of which are mounted theclosely spaced teeth 68 which engage with the teeth 6| which projectforwardly from the collar 62 mounted in a long bearing upon the shaft 56for rotational movement therewith and longitudinal movement relativethereto, such collar including the groove 63.

Intermediate the gate section 42 and the objective lens 0 the shutter 88may be positioned. This shutter may be mounted as in the casting 283adapted to be secured directly to one side of the main frame F and overa shaft receiving extension 284 passing through an opening 285 in theframe. Mounted in the extension 284 is a shaft 286 carrying at one end aspiral gear 281 adapted to mesh with a suitable gear 288 on the shaft56, preferably positioned with the casing C. The opposite end of theshaft 286 extends into an enlargement 289 and is provided with a spiralgear 290 meshing with a suitable gear 29| on a longitudinally extendingshaft 292, The shaft 292 at one end carries the shutter 68 which may besecured in position by the driving disk 293.

The casting 283 may be shaped to receive the objective lens holder 282,or such holder, as illustrated in Figure 1, may be attached directly tothe frame F. It will be understood that the lubrication for the shafts286 and 292 and the gears 281, 288, 298, and 29| is provided by thesolidified oil or other suitable lubricant which fills the box C,extension 284, and enlargement 289 in which the sectional cam 55 and thestar wheel 54 are mounted.

Secured to the end of the driving shaft 2|, and in line with the gear59, is a gear 69 which through the gear 10 mounted upon the shaft 64supported in the bracket 65 is effective for driving the shutter shaft56 from the drive shaft. By reason of this construction, it will beapparent that when the collar 62 and the teeth 6| are moved to the leftas viewed in Figure 2 the shutter shaft 56 is rotated by the motor M.

As is clearly shown in Figures 4 and 4a, cooperating with the sprocket50 and normally occupying the position illustrated in Figure 1 of thedrawings, is a stripping shield mounted loosely upon the sprocket shaft53. Secured to the inner side of the shield 1| is a pinion 13 with whichmeshes an arcuate rack 14 having a pivotal mounting 15 and operatedsimultaneously with the operation of the gate rod 48 by means of a pin11 projecting outwardly from the gate opening rod and engaging a slot 18in the extension 18 of the arcuate rack. With the construction justdescribed, movement of the gate opening rod to the left as viewed inFigure 4a for the purpose of opening the relatively separable gatesections,.

will effect rotation of the rack in a counter-clockwise direction asviewed in this figure, thereby rotating the shield in a clockwisedirection. This ing, it will remain in this position, preferablycovering all of the teeth of the sprocket which are exposed during thefeeding of the film. Thus the threading operation of the film is greatlyexpedited, and the film completely protected from all teeth during suchchanging operation or during rewinding.

For further assisting the threading movement, the relatively fixed gatesection 42 is provided with a projecting guide having a generally curvedcontour for gradually guiding the film over the fixed gate section, theguide having a curved and inclined end 8| for insuring passage of thefilm over the sprocket and an oppositely inclined and curved end 82 forthe purpose hereinafter more fully set forth. The frame F also hassecured thereto a secondary guide member 83 positioned in spacedrelation to the guiding member 80 and adapted to extend substantially inalignment with the inner face of the movable gate section when it hasbeen moved to open position, whereby the filmv is effectively guidedinto position between these gate sections. The

member 83 has a curved lower extending end 84 having a functioncorresponding to that of the curved end 82 of the guide member 80.Supported from one end of the movable gate section by the spring 86 is ashoe curved to generally conform to the curvature of the sprocket 50,the-contour of the innner surface accommodating the teeth 5| of thesprocket. These guides and shoe cooperate in a manner, as will bereadily apparent from the drawings, to permit a film to be positionedbetween the gate members by merely moving the same laterally relative toits normal direction of travel through the gate and to be removed by asimilar movement in the opposite direction. It will be readilyunderstood by those skilled in the art that the above construction isalso adapted for use under conditions in which the end of the film isinitially introduced at one end of the gate and moved therethrough. Themovement of the shoe 85, later described, is effective to place'the'filmin operative contact with the sprocket 50. This greatly lessens the timerequired for threading new film into position, and enables the operationto be performed satisfactorily by an unskilled operator.

When the apparatus isutilized for so-called still projection of picturesand during .film threading or rewinding, it is necessary of desirable toprovide means in the path of travel of the light rays for protectingthe-film against danger of injury by reason of undue temperatureconditioris. For effectively shielding the film during such period,there is provided a trap or shield 81 composed of suitable material suchas copper screen of suitable mesh carried by a shaft 88 having one endjournaled in a bearing 88' projecting from the frame F and having itsother end suitably journaled in the supporting base B. This shaft isadapted to be periodically operated in accordance with the character ofoperation of the machine.

In orderbodily to positionthe film in proper lateral relation to thefilm moving means and to the gate, there may be provided a positioningmechanism of the type disclosed and claimed in the copendingapplication'of Barton Allen Proc- 5 tor Serial Number 187,980, filedApril 30, 1927, now Patent Number 1,944,033, and in his copendingapplication, Serial Number 348,633, filed March 20, 1929, nowPatent-Number 1,944,037 which is a continuation in part of said applica-10 tion and in part of his copending application, Serial Number 54,910,filed September 8, .1925. As will be apparent from Figures 1, 3a, 3b and6 there are provided film positioning fingers30l of such nature. thatwhen retracted'they lie en- 15 link 306 is attached is turnedsubstantially at 25 right anglesto the body portion to provide anannular portion 3l0 which is substantially arcuate and adaptedto receivea relatively long slot 3 in which the pin 11 moves. The link 306 ispreferably continued beyond the plane of the 30 I lever 30! to provide apost 3| 2 for cooperation with the tension spring 3|3 so positioned asto snap the lever 30! in one direction or the other, after it has beenmoved a predetermined distance in such direction, the elongated slot 335 constituting a lost motion connection. between the parts.'

By reason of this construction, it will be apparent that when the rod 48is moved to the left as viewed in the drawings, it will be eifective forrotating the lever 301 in a counter-clockwise direction and effectingthereby similar rotational movements of the fingers 30l from the lockingposition shown in Figures 1 and 6 to the inoperative position shown inFigures 4a and 4b. As such fingers 301 are moved into a positionsubstantially normal to the longitudinal axis of the rod 303 and withinthe limits of the fixed gate section, the gate section 46 is movedrelatively to the section 42 thus opening the gate and permitting theremoval of a previously displayed film and the insertion of another.Movement of the rod to the right, however, will perform the oppositefunction. The fingers 30l will be rotated to the left, as viewed inFigure 4a, immediately with the beginning of the closing movement of thegate, and will at once sweep completely into the gate and into the filmpath generally and into proper lateral position relative to the feedingsprockets any film which may 0 have been positioned within the generalarea of the gate or near to the sprockets. Such bodily positioning willtake place well in advance of the completion of the closing movement ofthe supply sprocket, to draw film from the supply reel, and the latter,hereafter called the take-up sprocket, to take film away from theintermittent or feeding sprocket 50 and move it toward the take-up reel.

The supply sprocket 89 I preferably position within the curved upwardportion 8| of the guide membertli so that as the film is flaced inapparatus by a movement lateral to its ordinary course of traveltherethrough, it will be placed in operative position relative to suchsprocket. As is clearly shown in Figure 4, I mount such sprocket 89 uponthe shaft 9|, which is supported by the main frame and by the bracket92. Loosely mounted upon the shaft 9|, I place the spiral gear 94 to theright side of which attached the serrated disk 95. Further to the right,I mount upon the shaft SI for longitudinal movement relative thereto androtational movement therewith the clutch collar 96 with the annulardepression 91 for cooperation with the clutch lingers later describedand terminating to the left in the serrated disk 98 for appropriateengagement with the serrated disk 95.

For actuating the take-up sprocket 90, similar. mechanism may beprovided. .As is likewise clearly shown in Figure 4, I mount suchsprocket upon the shaft int! which is supported by the main frame and bythe bracket Nil. Loosely mounted upon the shaft MO, I place the spiralgear M2 to the right side of which is attached the serrated disk 503.Further to the right, I mount upon the shaft I00 for longitudinalmovement relative thereto and rotational movementtherewith the clutchcollar E04 with the annular depression N35 for cooperation with theclutch lingers later described and terminated to the left in theserrated disk 36 for appropriate engagement with the serrated disk N33.

The power train for the gears 94 and 562 may be as follows: To theextremity of shaft Q30 (Figure 2) there is pinned the gear i0! meshingwith the gear lBB pinned to the main power shaft 2i and thuscontinuously rotating the spiral gear 502 and the gear Hi8 which engagestherewith, such gear 08 being pinned to the shaft 459 which is mountedin the bracket H0 upon the main frame F. To, the opposite end of suchshaft, there is pinned the gear Hi which drives the gear 94.

Suitable housings, not shown, may he supplied for all gears if desired,and the entire rear portion of the apparatus may be covered by a casingnot shown. If desired, the entire apparatus may be mounted in a cabinet.

Cooperating with the continuously driven sprockets 539 and fill, thereare provided stripping and protective shields M5 and lid similar inoperation to the shield 15 which cooperates with the feeding sprocket 5ip a The shield lid is mounted the Sim-a or, and has pinned to its inneror left hand extension, as viewed in Figure a pinion lid which mesheswith toothed bar iii supported as in the nearing lit and at its oppositeend engaging with the pinion H9 whichis mounted movement with the pinionl3.

Similarly, the shield ilii'is mounted upon the shaft and has pinned toits inner extension, viewed as above, the pinion i120 which meshes witha toothed bar 12L supported as in the hearing 1252, and at its oppositeend engaging with the pinion [159 which is mounted for movement with thepinion 3'23.

Ea, snleiaterminates in an inwardly curved extension, narrower than theaxial distance be-' tween the teeth of the sprocket, thus, as is commonin the motion picture art, stripping the film from the sprocket duringthe feeding operation and hence preventing it from following the teethtoo far. It will be recognized that such stripping is entirely differentfrom the primary function of such shiel&sto the bodily removal of thefilm from the feeding members and its complete protection therefrom.

The operation of such shields will he ohvious from Figure 4a. As the rodll is moved, in the manner previously described it will be effective foroperating the shield H, and with it, the shields H5 and 5. Thus themovement of the rod 8 to the left as viewed in Figure 4'a will beeifective to move all shields from the full line positions to thoseshown in dotted line, in timed relation to the opening of the gate, thusremoving the film from the teeth of the sprockets and m completelyshielding it therefrom.

Film guides cooperating with the gate and with the feeding mechanismsare provided.

A guiding element, preferably consisting of three rollers i23, relievedas is common in the motion picture art, is mounted upon the right of thearm 524, as viewed in Figure 4, which extends throughan appropriateopening in the main frame from the right angled plate i25, pivoted asupon the stud J26 extending from the hack of Q the frame, such guidingelement being held in cooperative relation the supply sprocket 89 by thetension of the'sprlng 621'. A second guiding element, preferablyconsisting of a curved plate l2? (Figure l}, is pivotally mounted uponthe pin 528, extending from the main frame adjacent the upper portionor" the gate. To. such pin is attached the arm M9 which is connected tothe lower portion oi the plate 325 by the linls i363.

A similar guiding element, preferably consisting of three rollers Q35,relieved as is common in the motion picture art, is mounted upon the armM2, which extends through an appropriate opening in the main frame F,from the plate 932' which plate is pivoted upon the stud 533 extendingfrom the hack of the frame. A second guiding element, preferablyconsisting oi a curved plate 533, is pivotally mounted upon the pini335, extending from the main frame adjacent the lower portion of thegate. Attached to such plate 633 is the arm 33%? which by means of a pinextending therefrom into an elongated slot of the link 3531 is operatedby the arm iSl, likewise by means of a pin operating in an elongatedslot, arm i371 being attached to the arm 9 To actuate the guidingelements positioned ad-' jacent lower portion of the gate in timedrelation with the elements positioned ad jacent the upper portion oi thegate, the and 532' joined by the link 538.

By reason of such construction, it will he evident that when the platesand l are moved in a direction away from the axes of sprockets 8S and asviewed in l' lgure or means later described, the guiding rollers [3% Iand till will likewise be moved away from the sprockets 89 and 9E andthe guiding plates i2? and H33 will he moved toward the film, thus completing the track or path for the film from the supply sprocket throughthe gate to the take-up sprocket, such movements of such guiding ele=ments 'oeing ehective to facilitate the positioning of a new film or theedge-wise removal of one alr adv displayed. the centres-y mave obtaineda so-called still or siereopticon projec- I ner later described.

ment of the plates I25 and I82 will be eflective to bring the guidingelements I25 and III in cooperative relation with the sprockets 88 and95 respectively, thus positioning the film thereupon and retainingitin-cooperation therewith-and to move the guiding plates I2! and I84away from the film track, thus permitting the unimpeded the guidingelements I21 and I84 may include a flange or outer section curved in adirection away from such path of travel as shown in United States Patent1,868,252, dated July 19, 1932. In

an apparatus in which it is desired to position the film by the end-wisetravel thereof through such path of travel, such guiding elements may beeither straight-sided or may include a flange or outer section curved ina direction toward the film as is shown in the co-pending application ofWarren Dunham Foster and Frederick Davenport Sweet, Serial Number352,525, filed April 4, 1929. Eitherof such constructions, under thecircumstances stated, will assist in the initial p0- sitioning of thefilm. V

For-controlling the operation of the apparatus in the manner desired,there is preferably provided a single control member in the form of aknob or button I39 projecting through an arcuate slot I48 in thesupporting base B. This slot is so shaped as to provide five operatingstations. designated respectively SI, S2, S8, S8 and S4. The

button I39 is adapted to be moved so that the control mechanism willoccupy any one of these stations. With the control mechanism at thestation SI, the respective parts of theapparatus are in such position asto insure the normal projection of pictures as, usual motion pictures.With the control button at station 82, there is thin, the movement ofthe button from the station SI to the station S2 being effective for disengaging the respective driving mechanismswhich are in operation duringthe projection of pictures in motion. With the control button at theintermediate position, station 80, mechanical becomes automaticallyoperative. 'ton in position at station S8, the respective parts timingof the actuation of the control mechanism With the butbutton in positionat station S4, the-respective parts of the apparatus are in suchposition as to permit rewinding of the by means of the motor M. Themovement of the button from Figures 7 to 22, both inclusive, Figures 7,8, 9,

1'0 and 20 illustrating the change in the position of the partsfollowing the movement of the control mechanism to the respectivestations. The

control button I39 is attached to the control mechanism in such mannerthat the connection therebetween is automatically destroyed orreestablished in accordance with the operating requirements of theapparatus. Such button may be mounted upon the pin I42 having a head I45against one side of which bears one end of a compression spring I44. Theopposite end of such spring bears against a flange I45 extendinginwardly from the control button I89. By reason of this construction, itwill be apparent that the button may be moved vertically on the pin I42but that the spring I44 will normally be effective for urging the buttondownwardly. At its lower end, the button I89 has a collar I48 of adiameter substantially to conform to the contour of the slot I45 asenlarged at each of the respective operating stations, except stationS8, whereby with the button in its lower position accidental movementfrom one of these stations is prevented. The lower end of the pin I42 isattached to the sleeve I41 which is s'lidably mounted upon the leverI48. Such lever I48 is mounted upon the lever I49. The headed pin I55,attached to the lever I48, extends through a slot I5I adjacent one endof thelever I48. The lever I48 is keyed or otherwise secured to one endof a gate control rod I52 journaledin a bearing bracket I58 projectingfrom the rearward side or the main frame F. Being secured to the gatecontrol rod I52 which is capable only of a turning movement about itslongitudinal axis, the lever I49 is restricted in movement to rotationonly. The combined sliding and rotating lever I48 is efl'ectivelymounted on the rotating lever I49 for rotational movement simultaneouslytherewith and sliding movement independently thereof. Projectingdownwardly from the lever I48 is a pin I54 with which the hook I55pivoted upon the pin I56 attached to the sleeve I" is adapted tocooperate.

Pivoted upon the pin I51 substantially in line with that portion or theslot I48 extending from station S8 tov station is the block I58,normally urged downwardly by the spring I58, upward movement beinglimited by the pin I88 with which the left hand projection of the blockis adapted to contact. Positioned below such block is the pawl I5Ipivoted as upon the pin I62 and urged to the right by the spring I 63against the pin I54. Urging the sleeve I4I downwardly as viewed inFigure 7 or 8, there is provided the spring I mounted about the rod I85which may be supported in any desired manner b ch sleeve and by theleverI48. y su By reason of the above construction, it will be evident thatwhen the combined rotating and sliding lever structure is rotated to theleft as viewed in the above mentioned figures fromthe position 88slightly beyond the position 80, the left projecting nose of the hook I"engages with the block I58 and is thereby forced to the right from theposition shown in Figure 9 to that shown in Figure 7, thus destroyingthe relation between the control button I39 and the actuating lever I48and permitting the power-operated portion of the control mechanism tocomplete the actuation of the apparatus wholly independently of theuser.

At a point intermediate its length, the combined rotating and slidinglever I48 is furnished wit the transversely extending recess I59 adaptedto cooperate with the pin- I10 projecting from the lever I'II, pivotedupon the pin "2. It m thu be apparent that after the pin "II has enteredthe slot I59, the downward movement of the control lever I48 will beeffective to move the lever Ill and through such movement, in the mannerhereafter described in detail, to actuate spindle clutch operative.

-move back into the full line sprocket clutch collar.

control lever I 48 is obtained in the manner hereinafter described.

In the slot I14 in one end of such lever I'll is mounted the pin I15attached to the control plate I11 which by means 01' the collar I11 isattached for rotation to the control plate I18 in the other end of whichplate is inserted the post I18 which operates the feeding control armsI88. I8I, I82, and I83. To such arms are attached the coaxial upwardlyextending sleeves I88, I85, I86 and I81 respectively, the rotation ofwhich is effective to actuate the various feeding clutches. Such sleevessurround the control rod I88 which operates the re-winding spindleclutch. Such sleeves and rod are joumalled for rotation in the base ofthe machine and in the bearings I88 and ISO extending from the mainframe.

As will be clearly seen from Figure 12, the springs I92, I93, I94, andI95, attached suitably to control arms I88, I8I, I82, and I83respectively and to the post I98, are employed to hold such control armsin contact with the post I19.

Reference to Figures 13, 14, 15, 16 and 2 will make clear the operationof the control arms and sleeves. Such figures are arranged in the orderof operation of the respective parts, not of their physical arrangement.

The take-up spindle clutch is controlled by arm I82 and sleeve 86, asshown in Figures 13 and 2.

The forked arms I91 may extend from the sleeve ltd and carry pins i98which engage the groove 25 of the take-up spindle clutch. The rotationof the rod 5778 in a clockwise direction as viewed in Figure 13 willforce the post ilG into contact with the protuberance 1199 of the arm I82, thus moving such arm to the dotted line position, and similarlyrotating the control sleeve I 88, and moving the control fingers i982inwardly as viewed in Figure 2, thus making the take-up Such furthermovement of the post We will cause the arm 82 to position of Figure 13,urged by the spring I94, thus declutching the take-up spindle. As thepost I19 is moved over the protuberance 2%, it will again move the armI82 to the right as viewed in Figure 13, thus again actuating thetake-up spindle. The eilect of the contrary movement of the plate H8will be olevious.

The supply sprocket clutch is controlled by arm I88 and sleeve iii-i, asshown in Figures 14 and 2.

Extending from the control sleeve I St is the arm 2M which operates thelink 262 which through the arm 203 is efiective to rotate the rod 294supported by the bearing 285. The forked arms 22%, supporting in theirouter extremities the fingers 2B1, extend from such rod 288, suchfingers being positioned within the groove H of the supply The rotationof the rod i 18 in a clockwise direction as viewed in Figure 14 willforce the post ill) into contact with the pro= tuberance of the arm586i, thus moving such arm to the dotted line position, and similarlyro= tating the control sleeve to l and moving the control fingers dilland the supply sprocket clutch collar 95 inwardly, as viewed in makingsuch clutch operative. Such further movement of the post il will causethe arm led to move back into the full line position of Figure '14,urged by the spring 4192, thus declutching the supply sprocket. As thepost we is moved over the protuberance til, it will again move the aimicli to the right as viewed in Figure it, thus again actuating thefeeding sprocket. Tneer'fect of the shown in Figures 15 screen in theclosed position.

4. 1 4. Figure 2, must understood that tion during the travel contrarymovement of the plate I18 will be obvious..

The shutter or intermittent feeding clutch is controlled by the arm I8Iand sleeve I85 as and 2.

Extending from such sleeve I85 are the forked arms 2 from the ends ofwhich project the clutch pins 2I2 which coact with the groove 63 of thecollar 80. The rotation of the rod I18 in a clockwise direction as shownin Figure 15 will force the post I18 into contact with the protuberance2I8 of the arm I8I, thus moving such arm to the dotted line position,and similarly rotating the control sleeve I85 and moving the forked arms2 and the pins 2I2 to the left as viewed in Figure 2, thus making theshutter clutch operative. Such further movement of the post I19 willcause the arm I8I to move back into the full line position of Figure 15,urged by the spring I93, thus declutching the intermittent shaft. As thepost I19 is moved over the protruberance 2, it will again move the armI8I to the right as viewed in Figure 15, thus again actuating theintermittent sprocket and shutter. The effect of the contrary movementof the plate I18 will be obvious.

The take-up sprocket clutch is controlled by the arm I83 and the sleeve581, as shown in Figures 16 and 2.

To such sleeve i181, there may be attached the arm 2I5 from which thelink M8 extends to the arm 2i? attached to the shaft 2i8.| Suitablyjournalled in the bearing 5299 and the bracket 228, and having attachedthereto the arms 222i carrying the pins 222 which cooperate with thegroove 285 in the driving portion of the take-up sprocket clutch. Therotation of the rod H8 will .be without effect upon the control plateuntil the post I'll engages the protuberance 223, thus forcing it intothe dotted line position shown in Figure 16, rotating the sleeve i8? andforcing the pins 222 inwardly as viewed in Figure 2, thus actuating thetake-up spindle clutch. As the post i 19 is moved in a contrary orupward direction, the control arm i333 will again occupy the full lineposition, thus rendering the take up sprocket again inoperative.

Immediately prior to the normal projection of 7 pictures in motion, itis necessary to move the shield or screen 81 from cepting or protectiveposition to a position out of the path of light. This is positivelyaccorn plished through the engagement of the right hand end of the leveriii, as viewed in Figures 7 to 10 inclusive, with the pin 22d extendingfrom the bar 225 guided by the brackets 226 at tached to the baseB. Theother end of such bar 225 is suitably attached to the arcuate rack 22?pivotally mounted upon the pin 228, the teeth of such rack engaging withthe pinion 229 at tached to the lower end of the shaft which operatesthe heat screen. The spring 2238 suitably attached to an extension ofthe bar and the base will be effective normally to hold the heat thefirst portion of the movement of the combined pivoted sliding lever fromthe station Sil to the point opposite station S2 will be without efiectupon the heat shield but that the heat shield will be from such point tostation Si. Thus the heat shield is in cooperative relation with the theapparatus has been put into full operation.

Power may be applied lever M8 and its normal light inter It will hereadilymoved to inoperative posirack bar is the arm 245 which is whichwill be eflective roithrough-it to'the above described control mecha-,

'nism as follows:

As is clearly shown in Figure 21, the combined rotating and slidinglever I48 by means of the 5 pin 235 is attached to the disk 235 whichiis rotationally mounted upon thestud 231 in the base B. By reasonof'this construction, it will be evident that the rotation of the disk235, clock-wise as shown in the drawings. will be eifectlve to move therotating and-sliding lever I48 from station 80 to station SI, thusactuating the control members as described above. The mutilated pinion2, attached to the center of v the disk235. meshes with the teeth 235out in the rack bar 240, guided-by the bearings 2 and 242. As is clearlyshown in Figures '1 and 9, power to move the disk 235 is applied throughthe solenoid 242, the core 244 of which is attached to the rack bar 240.Likewise attached to thefixed to the plunger 245 working within thecylinder 241 of the dash-pot 248, the exact timing of which iscontrolled at will by the adjustable port 249.

The actuati n of such solenoid is accomplished by a switch theconstruction of which is clearly shown in Figure 22. Attachedto the post250 of a standard four point snap switch 25I is the plate 252 into whichthe four pins 253 are fixed. Loosely mo ted upon such post 250 is theactuating plate 254; the left hand portion of which, as viewed inFigures '7 and 8, consists of two arms 255 and 255 and the right handportion of which, as so viewed, consists of the irregularly shapedportion 251. As is clearly shown in Figure 22, a spring trigger 258 isprovided, the left hand of which, as viewed in Figures 7 to 10inclusive, being inclined. Likewise, mounted upon the irregularly shapedportion 251 of theactuating plate. Projecting from the disk 256 is aswitch actuatin Pin 263.

To illustrate the actuation of the device to project motion pictures, itwill be assumed that I the user places the film within the gate andmoves the control button from station 83 to the intermediate station 80.Such movement, as will be made fully apparent in a following portion ofthis specification, will have rotated the gate control rod- I52 therebyhaving'retracted the stripping shields 'II, H5, and H5, actuated theshoe 85 and the guiding rollers I23 and I3I to bring the film intocontact with the sprockets 50, 89 and 90, moved the guides sprockets-89and 90. actuated the positioning fingers 3M, and closed the gate. Whenthe control button reaches the station S0, connection between it and thelever I48 and disk 238'is destroyed. At the same time, the actuating pin253 will engage the arm 255, move the actuating plate 254 in a clockwisedirection as viewed in the drawings, and, by engagement between theinclined endfo! the trigger 258 and actuating the solenoid which will beeffective to move the rack bar 240 from the-position shown in Figure 8to that shown in Figure '1, thus moving the sliding lever I48 fromstation S0 to station SI, necessarily ata uniformand predeterminedspeed, against the timing influence of the dash pot. Simultaneouslytherewith, the control post I'IQ'will move from the positio'nin which itis shown in Figure 13 to that in which it is shown in Fleur which isindicated-as A in Figures 13 to 16 both inclusive, it will actuate thetake-up spindle, Pufli l the him over sprocket. As the post sprocket anda similar trigger 255 is .manual control button carried thereby.

' spring I55 will move'the control to the right and engage I21 and I34away from the i one of the pins 253, quickly snap the switch 25I intooperative position, thus e 16. During its passage through the zone iacumen the ends of the teeth of the various sprockets and completing theengagement between the peri'orations in the film and such teeth. Noother film moving mechanism will be operative in zone A. In zone B, inthe manner previously described, such post I19 will actuate the supplysprocket which will thereupon draw a predeter mined amount of film fromthe supply reel into a loop between such sprocket and the intermittentI19 moves through zone C, the intermittent sprocket alone will beactuated, for a period slightly greater than one half that in which thesupply sprocket was actuated. and will draw down approximately one halfof the loop of film which had been previously created between theinmittent sprocket and the supply sprocket. Thus it will be evident thatthe two necessary loops of unsupported slack film will have beencreated, one adjacent the supply During zone D, the post I19 willsimultaneously form contact with the protuberances 200, 2I5, 2, and 223thus placing all or the film feeding mechanisms in simultaneousoperation. Within zone D, the heat protective means will be withdrawnfrom shieldingposition. Likewise within zone I), the trigger 25!,carried upon the irregular shaped portion 251 of the switch actuatingplate 254, will engage with one of the pins 253, thus snapping theswitch 25 I to inoperative position and de-energizing the solenoid. Itwill be understood that the inclined end of the spring trigger 258permits the pins to pass by it without interference when the plate isactuated by trigger 255, and vice versa.

Prior to the wardly from station S0,

movement of the lever I45 downthe sleeve I41 and the as has beenpreviously described, are held by the engagement of the bottom of thesleeve I" with the top of the pawl I5I. As the lever I48 completes itsdownward movement to station SI, the pawl "I will be forced to the leftby engagement between the extension 210 thereupon and the side of theone adjacent the take-up sprocket.

lever I48. At this point, such parts will be in the 45 position shown inFigure 7. Thereu'pon' the sleeve I4I and, the control button I39downwardly. The hook I55 will pass first tothe left or the pin I 54 andthereafter, urged by the spring 2'", will move 59 therewith thusreestablishing the connection between the manually operable controlbutton I39 and the control mechaism and locking the control mechanism atstation SI. Such locking action is completed shortly beiorethe solenoidis de-energized,owing to the momentary lag in the clearance of thecontactiml surfaces in the switch. For the purpose of furtherillustration, it will be assumed that the user wishes to examine onepicture at leisure. He will manually move the control button back towardstation S0 and then slightly toward the right into the station 82, as isshown in Figure 20. At such point, the post I19 will be upon the line 82in Figures 13 to 16 inclusive, all clutches then being inoperative andthe heat shield being in light intercepting position.

If, after having examined'one picture projected motionless, the userwishes to show additional still pictures,he may move the knob 3I4downwardly, thus depressing the rod 3I5 held by the bracket 3I5'againstthe compression of the spring lII thus placing the gear 2|! attached togear 3I8 in mesh with the the'rearward end of the 32I attached to therearward end of the auxiliary feeding shaft 322, mounted in any suitablefashion upon the rear of the frame F and carrying upon its forward endthe spiral gear 323 meshing with the spiral gear 324 attached to theshaft 9|. Any conventional and well known means may be employed totransmit the power of the shaft 322 to the shaft "III which drives thetakeup sprocket. Thus he is able to rotate all the sprockets and theshutter. In returning to the operation of pictures in motion, it isimpossible for him to move the control button from station S2 to stationSI without proceeding to the intermediate position station S0 andthereupon actuating the control mechanism whereby the loops will beaccurately re-formed since the-shoulder 25f of the pawl IGI will belocked in engagement with the sleeve MI.

As the control button is moved from station Si to station St, the switchactuating plate 254 will be reset by the movement of the actuating pin263 against the arm 256.

It may be assumed that after the projection of a single image from thefilm or the repetitious projection thereof, it is desired to change thefilm, or that in starting operation it may be necessary to movethe partsof the apparatus into such position that a film may be threaded therein.Under such circumstances the control button will be manually moved fromstation S2 or station Si through station Soto station S3. Such movementwill be effective for moving the combined swinging and sliding leverstructure against the shouldered side of the detent 325, which ispivoted Y on the stud 326 under the influence of the spring 321 so thatits projecting shoulder 328 will engage with the tooth 329 of the leverI'II before the pin -wise direction.

and the slot have been removed from cooperative relation, thus holdinglocked in inoperative position all the clutch control means, dash-potand spring and consequently the loop or slack producing mechanism. Asthe control button I39 is further rotated to the right as viewed inFigure 9, the pin I10 and the recess I69 will be completely removed fromcooperative relation and the gate control rod I52 will be rotated in acounterclock- Such rotation of the gate control rod is effective foropening the gate, for moving the guides I23, I21, I3l and I34 and theirassociated parts to film threading position, and for so actuating thestripping shields II, H5 and H6 as to eifect the desired bodily removalof the him from the sprockets 53, 89 and 30 and the shielding of suchsprockets so as to facilitate the threading of a new film into positionor to permit the rewinding of a film. Such movement also effective tomove the positioning fingers 3M to inoperative position.

Adjacent its upper portion there is secured to the gate control rod I52an arm 33!? to which is. attached a link 33! attached to the plate I25previously described (Figure 2a). Movement of the control button fromstation SII to station S3 will be effective for rotating the gatecontrol rod in a counter-clockwise direction as viewed in Figure 9 andmoving the link 33I to the right as viewed in Figure 2 thus movingthefilm guides toyfilm threading position.- When in such positiontheguiding elements I23 and m will be in relatively distant; relation tothe sprockets 89 and 90 respectively, and the guides I21 and I34in,r,elativelyclose relation to such sprockets.

will also be effective to move the plate 332 atstation. This movementwill be effective for bringing the pin 334 attached to the plate 335attached to the sliding and rotating lever I43 into engagement with thelever and moving it from the position shown in Figure 9 to that shown inFigure 10, thus rotating the rewinding spindle control rod E88. At itsfree end, this control rod carries spaced arms 338, provided withfingers 33s, normally lying in the groove 265 of the rewinding clutchsleeve 34. The rotation of the control rod H38 as occasioned by themovement of the control button from station S3 to station St will besuch as to move the rewinding clutch into operative position, wherebythe spindle 2 is connected in driven engagement with the shaft 3|, thisengagement being such that the film may be rewound by the continuedoperation between the belt and its pulleys 31 and 38 previouslydescribed.

From the foregoing, it will be apparent that the operation of a singlecontrol button performs in succession the necessary changes in theoperating positions of the various parts for permitting any desiredcondition of operation of the apparatus. Upon movement of the controlbutton from station S4 to station S3, the rewinding clutch will bedisengaged and the lever 336 moved into inoperative position against thepin 33! by the action of the spring 340.

During the movement of the control button I35 from station S3 to stationS0, the combined swinging and sliding lever structure will come intoengagement with the detent 325 and swing it in a clockwise directionagainst the action of its controlling spring 321, to thereby release thetooth 329 of the lever III from the holding action of the detent, andpermit the lever Ill and its associated parts to be subsequentlyoperated by the solenoid whereby the necessary loops will be formed andthe apparatus placed in full operation.

By reference to the drawings, it will be apparent that the pinion 238and rack 240 will be entirely out of operative contact except betweenstation S0 and station SI. The disk 23% may be guided and its rotationalmovement limited by the pin 3 incooperation with the slot 342.

It will be readily understood by those skilled in the art that the loopproducing mechanism controlling the gate and its associated parts, and

for actuating the rewinding mechanism disclosed [and claimed in theparent application'to which reference has beenmade, or, if desired, oneor n' oreof such operations may be automatically actuated and theremainder thereof actuated 343 carried by the condensing lens 'casingThis condensing lens as is usual in the art concentrates the light uponthe aperture. Forward of the gate the objective lens 0 may be positionedas previously described, for example, within the holder 282.

The combined lighting resistance and ventilating unit may be containedwithin the housing l-I. Within this housing may be mounted in anydesired manner a lamp L and a reflector, not shown. If desired,avariable resistance or rheostat-may be provided for the motor circuit,in order to operate the apparatus at varying speeds.

A fan V may be attached to the rearward end of the armature shaft of themotor. It will be understood that such fan will be in operationconcurrently with the operation of the light source.

Preferably the motor is of a constant speed type or any desired form ofvoltageregulator may be placed in circuit with the motor, to presventcurrent fluctuations and consequent variations in speed. v

A preferred and simplified modification of my invention is shown inFigures 18 and 19. In such modification, the motive power for operatingthe control mechanism is supplied by a relatively powerful compressionspring 350 placed about the rack bar flll'and held in position betweenthe bracket 352 and the head 353 as is clearly shown by the drawings.When the control disk 236' is moved to the position S0, the projection354 attached to the side thereof trips the arm 355 pivotedirpon the leftend of the link 358,

as viewed in Figures 18 and 19, and normally held with its rightwardlyextending portion 351 against the link 356 by means of the fiat spring358. Such movement of the link 356 will be effective for rocking the arm359 attached thereto by the'pin 360 which works in the elongated slot36!. Such arm 359, which is pivoted on the pin 352 will be movedupwardly against the holding action of the spring 363 thereby forcingits tooth 354 upwardly and away from the head 353 of the rod 210, thuspermitting the spring! to rotate the control disk 236' in a counterclockwise direction from the position shown in Figure 18 to that shownin Figure 19, and thereby to move the control mechanism in themanner-previously described, this entire operation being eflectuated bythe tooth 364 of the arm 359.

slack film may be automatically produced. Further advantages arise fromthe provision of means for the actuation of the mechanism for theproduction of loops or slack in the film intimed .or

sequential relation to the actuation of all other.

operations of the film handling apparatus. Further advantages are theprovision of unitary or interlocked control means for the loop producingin and the other elements of" the aptively to that period for which eachof said other .paratus', such elements including, for example,

the purpose of the initial production of slack 10 therein, thus puttingno extra strain whatever upon the film.

Other advantages arise from the lockingof the loop producing mechanismso that it is inefiec-- tive upon the film under certain conditions, as,for example, when its operation might injure the Additional advantagesare the provision of loop producing mechanism which is automaticallyoperated and definitely timed and the provision'zo of separate motivemeans for initiating the op-- eration of the apparatus and for operatingthe apparatus thereafter.

Further advantages are the provision of combined manual and automaticcontrol means and 25 the provision of manual means for initiating theoperation of the control mechanism and automatic means, with eitherelectrical or-mechanical motive means therefor, for operating suchmechanism.

A further advantage is the provision of means whereby the various filmfeeding members may be successively operated. v 1' Stillfurtheradvantages arise from the provision of control mechanism wherebythe various 3 operations -of a film handling apparatus may beperformedin the desired sequential or timed relation to each other andgo'verned by unitary 7 means.

I claim: v 1. In a film handling appwatus, a plurality of film feedingmembers adapted to engage the same film at the same time, mechanismoperatively connected with all of said members andincluding means foroperating one only of said members for a pre-determined period and thenstopping said member, and means for thereafter operating each of saidother mentioned members for a period which is distinctive and successiverelamentioned members previously has been operated, and means governingsaid mechanism and effective for timing the duration of each of said.periods.

- 2. In a film handling apparatus, a plurality of film feeding membersadapted to engage the same film at the'same time, mechanism operativelyconnected with all of said members including means for operating oneonlyof saidmembers for apre-determined period and then stopping' osaidmember, means for thereafter operating each of said other mentionedmembers for a period, each of said last named periods being distinct andsuccessive relatively to that-period for which each of saidother'mentioned members previously has been operated, and meansgoverning said mechanism and effective for timing the starting andstopping'of said members to provide intervals between suchsuccessiveperiods. 1

' 3. In a film handling apparatus, a plurality of -feeding members, asoin'ce of power, and mechanism operatively connecting said source ofpower and all of; said members including means for transmitting powerfrom said source'to each of said in succession whereby said members areactuated successively, means for disconnecting such power from any ofsaid members whereby the desired members are maintained motionless andother members are operated, and means for transmitting such power to allof said motionless members simultaneo-usly whereby all of said membersare operated concurrently.

4. In a film handling apparatus, a plurality of film feeding membersadapted to engage the same film at the same time, a source of power foroperating said members, and mechanism interlocking said source of powerand all of said members and efiective for operatively connecting saidsource of power with said members, said mechanism including means forfirst connecting one only of said members with said source of power fora pre-determined period only, means thereafter connecting each of saidother mentioned members with said source of powerfor periods each ofwhich is distinct and successive relatively to that period for whicheach of said other ment-ioned members previously has been connected tosaid source of power, and devices thereafter concurrently connecting allof said members with said source of power for an indefinite period.

5. In a film handling apparatus, two feeding members, means for drivingsaid members in the same direction, a first means for connecting one ofsaid feeding members with said driving means, a second and separatemeans for connecting the other of said members with said driving means,and control mechanism interlocking-the two connecting means and firsteffecting the operation of said first means and rendering said secondmeans inoperative, and devices thereafter effecting the operation ofsaid second means and rendering said first means inoperative.

6. In a film handling apparatus, a continuous feeding member, anintermittent feeding member, a source of power for said members, a firstmeans for connecting one of said members with said source of power, asecond means for connecting the other of said members with said sourceof power, and control mechanism interlocking both of said means andhaving devices for first effecting the operation of said first means andrendering said second means inoperative, devices thereafter effectingthe operation of said second means and rendering said first mentionedmeans inoperative, and devices thereafter making both of said meansoperative for concurrently operating both of said feeding members.

7. In a film handling apparatus, a first toothed feeding member, asecond toothed feeding member, said members engaging the same film atthe same time, a source of power for both of said members, meansnecessarily effective for connecting said first member with said sourceof power and including devices effective a predetermined periodthereafter for disconnecting said second member and said power, meansnecessarily effective for connecting said second member with said sourceof power and including devices effective a means for first operatingsaid first named means and thereafter operating said second namedtermining the intervals between such successive operations.

9. In a film handling apparatus, a first feeding member, means forcontinuously operating said first member, a second feeding member, meansfor intermittently operating said second member,

a third feeding member, means for continuously operating said thirdmember, and means for producing slack in the film between said first andsecond members and between said second and third members, said slackproducing means comprising mechanism interlocking all of said operatingmeans and including devices for first actuating said means for operatingsaid first member while maintaining said means for operating said secondmember without effect thereupon and said means for operating said thirdmember without effect thereupon, and devices efiective after apredetermined period to stop the operation of said means for operatingsaid first member, and devices for actuating said means for operatingsaid second member while maintaining said means to actuate said firstmember without effect thereupon and said means for operating said thirdmember without effect thereupon. 10. In a film handling apparatus, afirst feeding member, means for continuously operating said firstmember, a second feeding member, means for intermittently operating saidsecond member, a third feeding member, means for continuously operatingsaid third member, and means for producing slack in the film betweensaid first and second members and between said second and third members,said slack producing means comprising mechanism interlocking all of saidoperating means and including devices for first actuating said means foroperating said first member for a predetermined period while maintainingsaid means for operating said second member without effect thereupon andsaid means for operating said third member without effect thereupon,devices for stopping the operation of said means for operating saidfirst member, and devices for actuating said means for operating saidsecond member while maintaining said means for operating said firstmember without effect thereupon and said means for operating said thirdmember without effect thereupon, and devices for stopping the operationof said means for operating said second member after a period ofsubstantially half that of such predetermined period during which saidmeans for operating said first member was operated. 11. In a filmhandling apparatus, a first feeding member, means for continuouslyoperating said first member, a second feeding member, means forintermittently operating said-second member, a third feeding member,means for con tinuously operating said third member, means for producingslack in the film between said first and second members and between,said second and third members and for controlling the regular feedingoperation of the apparatus, said slack producing and controlling meanscomprising mechanism interlocking all of said operating

